https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121320
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-15 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:3ef3de7a7329d5c76bed31e8b49a2a661c45f72f commit r15-10185-g3ef3de7a7329d5c76bed31e8b49a2a661c45f72f Author: Richard Biener <rguent...@suse.de> Date: Thu Jul 31 13:06:36 2025 +0200 tree-optimization/121320 - UBSAN error in ao_ref_init_from_vn_reference The multiplication by BITS_PER_UNIT should be done in poly_offset_int. PR tree-optimization/121320 * tree-ssa-sccvn.cc (ao_ref_init_from_vn_reference): Convert op->off to poly_offset_int before multiplying by BITS_PER_UNIT. (cherry picked from commit ff6f7d8e005ae94ffd55f1dba727e28531c3daf3)